How much should you charge your Tesla overnight to keep the battery healthy and the software healthy?

Tesla's attitude towards charging his vehicles overnight continues to evolve as it processes data from the real world to its fleet of Model 3s and their 2170 cells. Kim, from the YouTube channel Like Tesla her Model 3 had been charged to 70% for the 11,000 miles she owned. She found that during this time the specified range of the full load car had dropped from 310 miles to 260 miles.

That's a staggering capacity loss and far beyond what we expect from hundreds of miles on individual S and X models. Even more shocking was that Kim's Tesla was roasted from the point of view of the store, only up to 70% each night. was charged per Tesla leadership. Kim used her platform to make a video about her findings and drove to Tesla to find out what was going on. Tesla shared some instructions that Kim summarized in her video.

Nightly 90% charge. Vehicle should be plugged in at 90%. The range should increase within a few weeks.

In case of failure, charge to 100%. Leave the device plugged in until charging is complete.

Go below 10% and repeat the 100% charge 2-3 times until complete recalibration.

She has learned that the gauge that indicates the mileage of the vehicle is essentially trained. The new recommendation is to charge the car up to 90% overnight and leave it connected after charging. This essentially begins a re-training process that reminds the car how much battery pack it has, causing the displayed range to increase in a matter of weeks.

In other words, the car's battery has not really lost much of its energy storage capacity. Since Kim kept the load at 70% or below, some of the car's software was convinced that the car had a shorter range than it actually did.

To alert the problem, Kim tweeted it to Elon and asked the same question. In a typical Elon style, he said it's not worth keeping the car's charge below 80% per night, and even 90% are fine.

It does not pay to go below 80% imo. Even 90% is still fine. No problem with a SoC of 5% or less.

Check out the video below for a more thorough unpacking of the entire experience with the Model 3, but be a part of it Warning: It starts with a healthy dose of "family business" since Just as Tesla just opened its official website and store, the video starts with a few minutes of it.

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